[AG-TECH] Multicast service model
nickless at mcs.anl.gov
Fri Jan 25 15:58:09 CST 2002
Thank you, Lucy, for forwarding the multicast service model draft on to the
mboned working group. I intended to do it but simply hadn't gotten around
to it yet.
I've gotten a couple of questions from people asking about the
draft. Having thought about it for a couple of days, I think the draft is
not written as clearly as it could be.
It should be split into two separate drafts:
- Description of the Multicast Service Model
- Survey of implementations of the Multicast Service Model
In general, I think we would be better off with some separation between
the service model discussion and the engineering necessary to support that
model. The irony is that I was trying to do that in the draft in question,
but managed to fall back into the trap myself.
Why? Because many-to-many applications like Access Grid want the service
model, and one-to-many applications like Internet broadcast do too. It's
less clear to me that an IGMP-based implementation of that service model is
necessarily the best or only way.
Watch This Space for a rewritten version of the Multicast Service Model
draft along with a companion Multicast Service Implementation Survey draft.
Bill Nickless http://www.mcs.anl.gov/people/nickless +1 630 252 7390
PGP:0E 0F 16 80 C5 B1 69 52 E1 44 1A A5 0E 1B 74 F7 nickless at mcs.anl.gov
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